package com.arraydemo;

public class array3 {
    public static void main(String[] args) {

        // 定义数组
        int[] arr = {1, 2, 3, 4, 5};

        int sum = 0;

        for (int i = 0; i < arr.length; i++) {
            sum = sum + arr[i];
        }

        System.out.println(sum);
    }
}
